AB Combustion & Iridescence products

The ABC&I high technology systems creates a chemical reactor volume inside the NO_x-producing boiler or furnace. Examples of used chemical agents and reactions are shown below. The chemical reactions and reactant stoechiometry are controlled by an intelligent software. Advanced construction materials used in the system satisfies requirements in respect to corrosion, temperature, wear and aggressive exposure from chemicals and flue gas.

ABC&I´s products in the field of NO_x-reduction encompass three different methodologies. The first alternative uses a mathematical modelling method in which combustion-controlling parameters are optimised in such a way that the NO_x-formation is steered to a minimum level. Used mathematical tools are CFD – and/or multivariate analysis. A typical optimisation normally leads to a NO_x reduction between 10-30% depending on the complexity in the combustional system. The higher the complexity, the higher potential of NO_x-reduction. Constraints are CO-level and furnace time/temperature profile for the processed steel quality.

NO_x-reduction in the cement industry are complex. Requirements are demanding not only on reduction in NO_x but also in added ammonia to the flue gas together with elimination of the potential risk of enhanced CO-emissions as well as inter activated formation of N₂O.